Milling machine feed mechanism



June 21, 1949. E BLOND ET AL 2,473,596

MILLING MACHINE FEED MECHANISM Original Filed Oct. 14, 1941 19Sheets-Sheet l k J INVENTORS. RKMRRD .LEBLQND HRRRY C. KEMPER 19Sheets-Sheet 2 INVENTORS RKMRR'D KLEBLQND BY HRRRY C..KE\"\PE.R

RT'TORNEY5 June 1949- R. K. LE BLOND ETAL 2,473,596

MILLING MACHINE FEED MECHANISM Original Filed 001;. 14, 1941 19Sheets-Sheet 5 III INVENTORS. RKMRRD KLEBLQND HRRR( LKENPER 5 ATTORNEYSJune 21, 1949. R. K. LE BLOND ETAL MILLING MACHINE FEED MECHANISMOriginal Filed Oct. 14, 1941 19 Sheets-Sheet 6 F-TG E INVENTORS. RLCHRRD KLEBLQND HHRRY C. KENPER RTTDRNEYS June 21, 1949. R. K. LE BLONDETAL 2,473,596

MILLING MACHINE FEED MECHANISM Original Filed Oct. 14, 1941 19Sheets-Sheet '7 INVENTORS. FE SZ[[ RICHARD K. LEBLDND mam axemek mm-m5.

June 21, 1949- R. K. 1.5 BLOND ETAL 2,473,595

MILLING MACHINE FEED MECHANISM Original Filed Oct. 14, 1941 19Sheets-Sheet 8 n 1 x l I 1 i INVENTORS. RICHMLD K. LEBLOND June 21,1949.

R. K. LE BLOND EI'AL 2,473,596

MILLING MACHINE FEED MECHANISM Original Filed. Oct. 14, 1941 19Sheets-She et 9 INVENTORS. REHARD K. LE BLOHD m HARRT C. KEMPFR mm! MJune 21, 1949. R. K. LE BLOND EI'AL 2"473,596

MILLING MACHINE FEED MECHANISM Original Filed Oct. 14, 1941 19Sheets-Sheet 10 INVENTORS. man u LEBLOND BY HARRY C.KEMPER GAL-4 June21, 1949. R. K. LE BLOND EI'AL 2,473,596

MILLING MACHINE FEED MECHANISM Original Filed Oct. 14, 1941 19Sheets-Sheet l1 INVENTORS. R\C.HP\RD K.LEBLOND HARRY C KEMPER June 21,1949 R. K. LE BLOND ET AL 2,473,596

MILLING MACHINE FEED MECHANISM Original Filed Oct. 14, 1941 19Sheets-Sheet 13 EL g9. INVENTORS.

N R\C.HF\RD .LEBLOND BY HRRRY c..m=.mPF.R

HTTORNEYS June 21, 1949. R. K. LE BLOND ETAL 2,473,596

MILLING MACHINE FEED MECHANISM Original Filed Oct. 14, 1941 19Sheets-Sheet 14 INVENTORS. RNA-HARD KLEBLOND HARRY C. KEMPER 5. BY W FRTTORNEYS June 21, 1949. R. K. LE BLOND ETAL MILLING MACHINE FEEDMECHANISM 19 Sheets-Sheet 15 Original Filed. Oct. 14, 1941 June 21,1949. R. K. LE BLOND ET AL 2,473,596

MILLING MACHINE FEED MECHANISM Original Filed Oct. 14, 1941 19Sheets-Sheet 16 I NV E NTORS.

m RICH HRD K, LEBLON'D d 5 BY HHRRY C. KEMPER E3.

RTTQRNEYS June 21, 1949. R. K. LE BLOND ET AL MILLING MACHINE FEEDMECHANISM l9 Sheets-Sheet 17 Original Filed Oct. 14, 1941 INVENTORS. Imama K.LEBLOND BY Hmq c .KENFER June 21, 1949. R. K. LE BLOND ETALMILLING MACHINE FEED MECHANISM Original Filed 001.. 14, 1941 19Shefcs-Sheet 18 and INVENTORS. RlCHHRD K LEBLONfi BY HRRRY cxemaaRTTDRNEYS June 21, 1949. R. K. LE BLOND EIAL.

MILLING MACHINE FEED MECHANISM l9 Sheets-Sheet 19 Original Filed Oct.14, 1941 INVENTORS. R\ CHRRD KLEELOND HARRY CKEMPER a RTTQRNEYfiPatented June 21, 1949 MILLING MACHINE FEED MECHANISM Richard K. LeBlond, Cincinnati, and Harry G. Kemper, Goshen Township, ClcrmontCounty, Ohio, assignors to The R.. K. Le Blond Machine Tool 00.,Cincinnati, Ohio, a corporation of Delaware Original application October14, 1941, Serial No.

414,962, new Patent No. 2,338,121, dated January 4, 1944. Divided andthis application December 1S, 1943, Serial No. 514,760

9 Claims. 1

This application is a divisional application of Serial Number 414,962,filed October 14, 1941, now Patent No. 2,338,l2l, issued,January 4,1944.

This invention pertains generally to transmission and control mechanismfor milling machines, and is especially related to such mechanism forefi'ecting and controlling rotation of the spindle, tool or cutter andthe movements of the knee, the saddle, and the table, of such millingmachines, which aregenerally known as the knee and saddle type millingmachines.

This invention covers certain specific improvements in former apparatusfor such millin machines in providinggreater ease and facility inoperating the various moving members of the machine and in controllingthem with a minimum of fatigue, thought, and effort upon the part of theoperator performing machining operations in the machine tool. It is alsoan object to provide a greater range of cutting speeds for the toolspindle, and a greater degree of control for the work table so as torender the machine readily adaptable to the utilization of the mostmodem and up to date type of carbide cutting tools.

An object of this invention is to provide, in a milling machine having atool spindle adapted to be driven at a series of different rates ofspeed and a work table, saddle, and knee to be actuated at differentrates of feeding, a single lever control mechanism comprising primaryspeed changes and main range of feed changes each operated by a singlelever in such a way that the similar mechanism of substantiallyidentical design, operation, and appearance is provided for the toolspindle and the work table, saddle, and knee of the milling machine. Inthis way the similarity of the two speed changing devices, one for thecutter spindle and the other for the feeding of the work relative to thecutter on said cutter spindle, are substantially identical design,appearance, and operation, to thereby minimize confusion and thoughtbeing required upon the part of the operator in manipulating thesecontrols to effect the necessary spindle rotation and work speeds forthe machine.

Another object of this invention is to provide control levers on themachine, particularly in connection with the knee, saddle, and tablemovements which are so positioned as to move in the direction of therelative movement of the member which it controls, that is, the leverfor eiiecting up and down movement of the knee is arranged to have upand down movement so as to immediately indicate to the operator by amere movement of the lever which way the member he is controlling bythat lever will move, thus greatly minimizing error in the control ofthe machine and minimizing mental efiort and skill upon the part of theoperator in eflecting the various movements of the knee, saddle, andtable of the machine.

Another object of this invention is to provide a single control levermanipulatable each side of a neutral position for effecting feed ineither directlon or rapid traverse in either direction for the knee,saddle, or table, the particular member to be so actuated in feed orrapid traverse in either direction being set in motion by an individualmotion control lever for each knee, saddle, and table or if desired allor any pair of these members may be operatedsimultaneously withoutdamage to the machine.

A further object of, this invention is to provide in a milling machinehaving a knee, saddle, and table, a singlecontrol lever associatedwitheach knee, saddle and table for. rendering each of these membersoperative or inoperative, while providing another single lever capableof movement for effecting rapid traverse and-feed for each of thesemembers in either direction as determined by the position of theindividual selection lever for each knee, saddle, and table.

It is further object, in connection with the utilization of anindividual motion selecting lever for each knee, saddle, and tablemembers in conjunction with a master lever for efiecting feed or rapidtraverse motions of each of the members selected in either direction, toprovide an arrangement whereby the movement of the individual membersareadapted to trip the master feed and rapid traverse lever but whichmembers in no way effect the motion selection levers for each of thesemembersof the machine. For. example, when the tableis moved to the endof the feeding cycle it will trip the master lever to neutral positionthus stopping feed in one direction, and it is then merely necessary tomove this same leverin the reverse-directionto effect feed or rapidtraverse immediately of the table in the opposite direction without inany way disconmeeting or eiiecting the motion selection lever for thetable. Similarly it is an object to effect the same type of control forthe saddle and knee from the master feed and rapid traverse controllever for either direction.

Another object of this invention is to provide an arrangement inconnection with the elevating hand crank for manually raising andlowering the knee that will automatically disconnect the mechanism foractuating the elevating screw by

